Conformal coating application

Conformal coatings can be applied to printed circuit boards in the production environment in many alternative ways.

Listed below are the common methods of applying the conformal coating materials.

Brushing

Aerosol Spray

Batch Spray

Selective Spray

Dipping

Vapour Deposition

Click on each to review each conformal coating application technique.

Conformal coatings can be applied in a variety of ways including brushing, dipping, spraying and vapour deposition application

The holistic approach to the application methods

It is possible to split the different application methods and their suitability in many different ways including:

Compatibility with the conformal coating material

Design of the circuit board

Suitability to low, medium and high volume

Manual versus automatic process

Type of method of application

Level of control required

Each of the various methods has different advantages and disadvantages.

This relates to the holistic approach to conformal coating processing which states that you should consider the material, the application process and the circuit board together and not as three separate entities.

However, when considering the application methods it is possible to make some assumptions which help in selection.

Each of the conformal coating processes are reviewed separately by clicking on the links.